var double = "double";
var unescaped = "a string containing 'single' quotes";
var foo = "bar";
// output: var foo = 'bar';
var foo = `bar`;
// output: var foo = 'bar';
var msg = "Plugin '\" + name + \"' not found"
// output: var msg = 'Plugin \'' + name + '\' not found'
var foo = "\\1"
// output: var foo = '\\1'
class C { "foo"; }
// output: class C { 'foo'; }
class C { "foo"() {} }
// output: class C { 'foo'() {} }